The lid does NOT screw on and off properly - the threads on the lib do not match the jar. You have to pressure the edges to secure lib to jar andoftern you end up pushing on the screen. Jar is very large and works for larger seeds, but does not seem to do well with double size batch of smaller sprouting seeds.

I was considering to buy a couple of these, so I got one to start with. Can't even open it, neither can any of the people I have handed it around towards. Not buying again, will be looking for a sprouting tray instead.